| 摘要 |
A sheet material is provided with a plurality of slots within a region, the longer slots being near the centre of the region and getting shorter toward the outer perimeter of the region. The edges of the sheet are then pulled apart, in particular, a pulling force is applied in the plane of the sheet and perpendicular to the length of the slots which effects a distortion and curvature of the sheet and forms an expanded mesh in the area of the slotted region. Sheets of plastics and metal can be formed into expanded mesh shapes using the technique.
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